Gwent's Police and Crime Commissioner and Gwent Police's former chief constable will appear before the Home Affairs Select Committee in London later.
Both parties will give their side of events that led to Mrs Napier's departure at the meeting in Westminister this afternoon.
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After a chilly start it will be a blustery day with some decent sunny spells for most and isolated, locally heavy, showers.
Mosques from across Wales are taking part in an open day today. Their aim is to let the public discover more about the Islamic faith.
Wales second-row Alun-Wyn Jones believes his side are in "an exciting place" as they target a post-World Cup Six Nations title.